import re
import json
from typing import Optional, Union

from multi_swe_bench.harness.image import Config, File, Image
from multi_swe_bench.harness.instance import Instance, TestResult
from multi_swe_bench.harness.pull_request import PullRequest


class ImageDefault(Image):
    def __init__(self, pr: PullRequest, config: Config):
        self._pr = pr
        self._config = config

    @property
    def pr(self) -> PullRequest:
        return self._pr

    @property
    def config(self) -> Config:
        return self._config

    def dependency(self) -> str:
        return "python:3.9-slim"

    def image_prefix(self) -> str:
        return "envagent"

    def image_tag(self) -> str:
        return f"pr-{self.pr.number}"

    def workdir(self) -> str:
        return f"pr-{self.pr.number}"

    def files(self) -> list[File]:
        repo_name = self.pr.repo
        return [
            File(
                ".",
                "fix.patch",
                f"{self.pr.fix_patch}",
            ),
            File(
                ".",
                "test.patch",
                f"{self.pr.test_patch}",
            ),
            File(
                ".",
                "prepare.sh",
                """pip install -e .
###ACTION_DELIMITER###
python -c "import cfnlint; print('cfnlint imported successfully')"
###ACTION_DELIMITER###
python -c "import networkx; print('networkx version:', networkx.__version__)"
###ACTION_DELIMITER###
sed -i '10s/from networkx import networkx/import networkx/' src/cfnlint/graph.py
###ACTION_DELIMITER###
python -c "import cfnlint; print('cfnlint imported successfully')"
###ACTION_DELIMITER###
python -m unittest discover -s test -v
###ACTION_DELIMITER###
apt-get update && apt-get install -y graphviz
###ACTION_DELIMITER###
pip install -e .[test]
###ACTION_DELIMITER###
pip install mock coverage pydot
###ACTION_DELIMITER###
python -m unittest discover -s test -v
###ACTION_DELIMITER###
tox
###ACTION_DELIMITER###
pip install tox
###ACTION_DELIMITER###
tox
###ACTION_DELIMITER###

###ACTION_DELIMITER###
sed -i '/\[testenv:pylint\]/,/deps =/c\[testenv:pylint\]\ndeps =\n  pylint_quotes==0.2.1\n  pylint==2.6.0' tox.ini
###ACTION_DELIMITER###
tox
###ACTION_DELIMITER###
echo 'python -m unittest discover -s test -v' > /home/cfn-lint/test_commands.sh""",
            ),
            File(
                ".",
                "run.sh",
                """#!/bin/bash
cd /home/[[REPO_NAME]]
python -m unittest discover -s test -v

""".replace("[[REPO_NAME]]", repo_name),
            ),
            File(
                ".",
                "test-run.sh",
                """#!/bin/bash
cd /home/[[REPO_NAME]]
if ! git -C /home/[[REPO_NAME]] apply --whitespace=nowarn /home/test.patch; then
    echo "Error: git apply failed" >&2
    exit 1  
fi
python -m unittest discover -s test -v

""".replace("[[REPO_NAME]]", repo_name),
            ),
            File(
                ".",
                "fix-run.sh",
                """#!/bin/bash
cd /home/[[REPO_NAME]]
if ! git -C /home/[[REPO_NAME]] apply --whitespace=nowarn  /home/test.patch /home/fix.patch; then
    echo "Error: git apply failed" >&2
    exit 1  
fi
python -m unittest discover -s test -v

""".replace("[[REPO_NAME]]", repo_name),
            ),
        ]

    def dockerfile(self) -> str:
        copy_commands = ""
        for file in self.files():
            copy_commands += f"COPY {file.name} /home/\n"

        dockerfile_content = """
# This is a template for creating a Dockerfile to test patches
# LLM should fill in the appropriate values based on the context

# Choose an appropriate base image based on the project's requirements - replace python:3.9-slim with actual base image
# For example: FROM ubuntu:**, FROM python:**, FROM node:**, FROM centos:**, etc.
FROM python:3.9-slim

## Set noninteractive
ENV DEBIAN_FRONTEND=noninteractive

# Install basic requirements
# For example: RUN apt-get update && apt-get install -y git
# For example: RUN yum install -y git
# For example: RUN apk add --no-cache git
RUN apt-get update && apt-get install -y git

# Ensure bash is available
RUN if [ ! -f /bin/bash ]; then         if command -v apk >/dev/null 2>&1; then             apk add --no-cache bash;         elif command -v apt-get >/dev/null 2>&1; then             apt-get update && apt-get install -y bash;         elif command -v yum >/dev/null 2>&1; then             yum install -y bash;         else             exit 1;         fi     fi

WORKDIR /home/
COPY fix.patch /home/
COPY test.patch /home/
RUN git clone https://github.com/aws-cloudformation/cfn-lint.git /home/cfn-lint

WORKDIR /home/cfn-lint
RUN git reset --hard
RUN git checkout {pr.base.sha}
"""
        dockerfile_content += f"""
{copy_commands}
"""
        return dockerfile_content.format(pr=self.pr)


@Instance.register("aws-cloudformation", "cfn_lint_1978_to_413")
class CFN_LINT_1978_TO_413(Instance):
    def __init__(self, pr: PullRequest, config: Config, *args, **kwargs):
        super().__init__()
        self._pr = pr
        self._config = config

    @property
    def pr(self) -> PullRequest:
        return self._pr

    def dependency(self) -> Optional[Image]:
        return ImageDefault(self.pr, self._config)

    def run(self, run_cmd: str = "") -> str:
        if run_cmd:
            return run_cmd

        return "bash /home/run.sh"

    def test_patch_run(self, test_patch_run_cmd: str = "") -> str:
        if test_patch_run_cmd:
            return test_patch_run_cmd

        return "bash /home/test-run.sh"

    def fix_patch_run(self, fix_patch_run_cmd: str = "") -> str:
        if fix_patch_run_cmd:
            return fix_patch_run_cmd

        return "bash /home/fix-run.sh"

    def parse_log(self, log: str) -> TestResult:
        # Parse the log content and extract test execution results.
        passed_tests: set[str] = set()  # Tests that passed successfully
        failed_tests: set[str] = set()  # Tests that failed
        skipped_tests: set[str] = set()  # Tests that were skipped
        import re
        import json

        lines = log.split("\n")
        i = 0
        while i < len(lines):
            line = lines[i].strip()
            # Check for failure/error summary lines
            fail_match = re.match(
                r"^(FAIL|ERROR):\s*(test\w+ \([\w.]+\.Test[\w.]+\))", line
            )
            if fail_match:
                test_name = fail_match.group(2).strip()
                failed_tests.add(test_name)
                i += 1
                continue
            # Check for same-line test (format: [num] test_name (class) ... status)
            same_line_match = re.match(
                r"^(test\w+ \([\w.]+\.Test[\w.]+\))\s*\.\.\.\s*(ok|FAIL|ERROR|SKIPPED)$",
                line,
            )
            if same_line_match:
                test_name = same_line_match.group(1).strip()
                status = same_line_match.group(2)
                if status == "ok":
                    passed_tests.add(test_name)
                elif status in ["FAIL", "ERROR"]:
                    failed_tests.add(test_name)
                elif status == "SKIPPED":
                    skipped_tests.add(test_name)
                i += 1
                continue
            # Check for test name line (format: [num] test_name (class)) with result on next line
            test_match = re.match(r"^(test\w+ \([\w.]+\.Test[\w.]+\))", line)
            if test_match:
                test_name = test_match.group(1).strip()
                if i + 1 < len(lines):
                    result_line = lines[i + 1].strip()
                    result_match = re.match(
                        r"^Test .*\.\.\.\s*(ok|FAIL|ERROR|SKIPPED)$", result_line
                    )
                    if result_match:
                        status = result_match.group(1)
                        if status == "ok":
                            passed_tests.add(test_name)
                        elif status in ["FAIL", "ERROR"]:
                            failed_tests.add(test_name)
                        elif status == "SKIPPED":
                            skipped_tests.add(test_name)
                        i += 2
                        continue
            # Move to next line if no match
            i += 1
        parsed_results = {
            "passed_tests": passed_tests,
            "failed_tests": failed_tests,
            "skipped_tests": skipped_tests,
        }

        return TestResult(
            passed_count=len(passed_tests),
            failed_count=len(failed_tests),
            skipped_count=len(skipped_tests),
            passed_tests=passed_tests,
            failed_tests=failed_tests,
            skipped_tests=skipped_tests,
        )
